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MARY ESTHER LEIER N.P.
NPI 1417216391
Nurse Practitioner - Family in Los Angeles, CA

Active since May 11, 2012PECOS EnrolledAccepts Medicare Assignment
87.67/100
CMS Quality Rating
127 S SAN VICENTE BLVD # A-3028, LOS ANGELES, CA 90048(310) 423-7060(310) 423-6795 Get Directions Write a Review

NPPES record last updated: June 28, 2023. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jun 7, 2023, Aug 30, 2022 (2 updates tracked since 2022).

About Mary Esther Leier N.p. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARY ESTHER LEIER N.P. (NPI 1417216391) is an individual family provider in Los Angeles, California, licensed in California (20982) and active in the NPI registry since May 2012. She is enrolled in Medicare PECOS and is a graduate of Other (2011).

NPPES Registry Identity

NPI1417216391
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMARY ESTHER LEIERCredential: N.P.
Location Address127 S SAN VICENTE BLVD # A-3028Los Angeles, CA 90048-3311
Mailing Address4140 W 190th StTorrance, CA 90504-5513 · (310) 423-7060 · Fax (310) 403-1606
Phone(310) 423-7060
Fax(310) 423-6795
Sole ProprietorNo
Medical School CMSOtherGraduated 2011
Enumeration DateMay 11, 2012
Last NPPES UpdateJune 28, 20232 updates tracked since enumeration
NPPES CertifiedJune 28, 2023
✔ NPI 1417216391 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in CA · 20982
127 S SAN VICENTE BLVD # A-3028, Los Angeles, CA 90048
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mary Esther Leier N.p. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3375864945
PECOS Enrollment IDI20150608001799
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
253 services221 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
50 services50 patients
External shock to heart to regulate heart beat 92960
This procedure, known as cardioversion, uses an external electrical shock to restore your heart's normal rhythm. It's typically performed when irregular heartbeats, or arrhythmias, are causing severe symptoms and aren't responding to medications.
26 services25 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
12 services12 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90048 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

87.67/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality80.86
Promoting Interoperability99
Improvement Activities40
Cost49.42

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mary Leier's NPI number?

The NPI number for Mary Leier is 1417216391. It was assigned to this individual provider in the NPPES registry on May 11, 2012.

Where is Mary Leier located?

Mary Leier practices at 127 S San Vicente Blvd # A-3028, Los Angeles, CA 90048. The listed phone number is (310) 423-7060.

What is Mary Leier's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Mary Leier enrolled in Medicare?

Yes. Mary Leier is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Mary Leier was last updated on June 28, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.